package com.zxp.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.lang.invoke.MethodHandle;
import java.util.concurrent.TimeUnit;

/**
 * @description:
 * @author: 张新朋
 * @time: 2020/5/6 11:12
 */
@Service
public class PaymentHystrixService {
    //服务降级
    public String get_OK(Integer id){
        return "get_OK"+Thread.currentThread().getName()+"\t"+"ID:"+id+"  O(∩_∩)O哈哈~";
    }
    public String get_ERROR(Integer id){
        int k = 10/0;
        /*int num = 5;
        try {
            TimeUnit.SECONDS.sleep(num);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }*/
        return "get_ERROR"+Thread.currentThread().getName()+"\t"+"ID："+id+"耗时：";
    }
    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}